STM32407用汇顶的GT911触摸芯片调试实盘

这个配置很关键

代码

#include "stm32f4xx.h"                 
#include "GT9147.h"
#include "Touch.h"
#include "C_Touch_I2C.h"
#include "usart.h"
#include "delay.h"
#include "LCD.h"
#include "string.h"
 
//GT9147配置参数表
//第一个字节为版本号(0X60),必须保证新的版本号大于等于GT9147内部
//flash原有版本号,才会更新配置.
const u8 GT9147_CFG_TBL[]=
{ 
	0X60,0XE0,0X01,0X20,0X03,0X05,0X35,0X00,0X02,0X08,
	0X1E,0X08,0X50,0X3C,0X0F,0X05,0X00,0X00,0XFF,0X67,
	0X50,0X00,0X00,0X18,0X1A,0X1E,0X14,0X89,0X28,0X0A,
	0X30,0X2E,0XBB,0X0A,0X03,0X00,0X00,0X02,0X33,0X1D,
	0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X32,0X00,0X00,
	0X2A,0X1C,0X5A,0X94,0XC5,0X02,0X07,0X00,0X00,0X00,
	0XB5,0X1F,0X00,0X90,0X28,0X00,0X77,0X32,0X00,0X62,
	0X3F,0X00,0X52,0X50,0X00,0X52,0X00,0X00,0X00,0X00,
	0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,
	0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X0F,
	0X0F,0X03,0X06,0X10,0X42,0XF8,0X0F,0X14,0X00,0X00,
	0X00,0X00,0X1A,0X18,0X16,0X14,0X12,0X10,0X0E,0X0C,
	0X0A,0X08,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,
	0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,
	0X00,0X00,0X29,0X28,0X24,0X22,0X20,0X1F,0X1E,0X1D,
	0X0E,0X0C,0X0A,0X08,0X06,0X05,0X04,0X02,0X00,0XFF,
	0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,
	0X00,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,
	0XFF,0XFF,0XFF,0XFF,
};  
//发送GT9147配置参数
//mode:0,参数不保存到flash
//     1,参数保存到flash
u8 GT9147_Send_Cfg(u8 mode)
{
	u8 buf[2];
	u8 i=0;
	buf[0]=0;
	buf[1]=mode;	//是否写入到GT9147 FLASH?  即是否掉电保存
	for(i=0;i>8);   	//发送高8位地址
	Touch_IIC_Wait_Ack(); 	 										  		   
	Touch_IIC_Send_Byte(reg&0XFF);   	//发送低8位地址
	Touch_IIC_Wait_Ack();  
	for(i=0;i>8);   	//发送高8位地址
	Touch_IIC_Wait_Ack(); 	 										  		   
 	Touch_IIC_Send_Byte(reg&0XFF);   	//发送低8位地址
	Touch_IIC_Wait_Ack();  
 	Touch_IIC_Start();  	 	   
	Touch_IIC_Send_Byte(GT_CMD_RD);   //发送读命令		   
	Touch_IIC_Wait_Ack();	   
	for(i=0;ilcddev.width||tp_dev.y[0]>lcddev.height)//非法数据(坐标超出了)
			{ 
				if((mode&0XF)>1)		//有其他点有数据,则复第二个触点的数据到第一个触点.
				{
					tp_dev.x[0]=tp_dev.x[1];
					tp_dev.y[0]=tp_dev.y[1];
					t=0;				//触发一次,则会最少连续监测10次,从而提高命中率
				}else					//非法数据,则忽略此次数据(还原原来的)  
				{
					tp_dev.x[0]=tp_dev.x[4];
					tp_dev.y[0]=tp_dev.y[4];
					mode=0X80;		
					tp_dev.sta=tempsta;	//恢复tp_dev.sta
				}
			}else t=0;					//触发一次,则会最少连续监测10次,从而提高命中率
		}
	}
	if((mode&0X8F)==0X80)//无触摸点按下
	{ 
		if(tp_dev.sta&TP_PRES_DOWN)	//之前是被按下的
		{
			tp_dev.sta&=~(1<<7);	//标记按键松开
		}
		tp_dev.x[0]=0xffff;
		tp_dev.y[0]=0xffff;
		tp_dev.sta&=0XE0;	//清除点有效标记	
		 
	} 	
	if(t>240)t=10;//重新从10开始计数
	return res;
}

代码参考她的就行

STM32F4_触摸屏_触摸屏驱动-CSDN博客